Goodwill and Other Intangible Assets - Intangible Assets and Amortization Expense (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 1,940,014		$ 1,940,014		$ 1,797,982
Accumulated amortization	782,465		782,465		673,679
Amortization expense	38,372	34,969	118,201	103,509
Intangible assets, net	1,327,232		1,327,232		1,294,177
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	138,540		138,540		126,634
Accumulated amortization	41,920		41,920		34,232
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	155,319		155,319		154,236
Accumulated amortization	107,888		107,888		102,804
Customer Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	1,410,036		1,410,036		1,288,483
Accumulated amortization	515,009		515,009		433,179
Unpatented Technologies [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	93,672		93,672		80,483
Accumulated amortization	43,708		43,708		35,891
Drawings and Manuals [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	37,848		37,848		41,800
Accumulated amortization	12,575		12,575		10,462
Distributor Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	72,514		72,514		72,514
Accumulated amortization	38,295		38,295		35,447
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	32,085		32,085		33,832
Accumulated amortization	$ 23,070		$ 23,070		$ 21,664